Confidence votes 103. To calculate the number of photons, you need the formula E=hf where h is Planck's constant with a value of 6.63*10^-34Js and f should be given. If f isn't given, then use the formula C = f * wavelength. Rearrange this formula by using the wavelength given and the C, speed of light, which is 3*10^8. What you also need is the Intensity. This way you obtain the photon flux as: I/E (i.e. the number of photons per unit area and unit time).
Skyler Page, the creator of Cartoon Networkâs Clarence has been fired after being accused of sexual assault. Cartoonbrew was the first to break the story, revealing a series of tweets from the alleged victim, Emily Partridge.
Gavin Esler. Gavin William James Esler (born 27 February 1953) is a Scottish journalist, television presenter and author. Esler was previously a main presenter on BBC Two's flagship political analysis programme, Newsnight, from January 2002 until January 2014, and presenter of BBC News at Five on the BBC News Channel more recently. Esler is the Chancellor of the University of Kent.